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/****************************************************************************
* poly.h
*
* This module contains all defines, typedefs, and prototypes for POLY.CPP.
*
* from Persistence of Vision(tm) Ray Tracer version 3.6.
* Copyright 1991-2003 Persistence of Vision Team
* Copyright 2003-2004 Persistence of Vision Raytracer Pty. Ltd.
*---------------------------------------------------------------------------
* NOTICE: This source code file is provided so that users may experiment
* with enhancements to POV-Ray and to port the software to platforms other
* than those supported by the POV-Ray developers. There are strict rules
* regarding how you are permitted to use this file. These rules are contained
* in the distribution and derivative versions licenses which should have been
* provided with this file.
*
* These licences may be found online, linked from the end-user license
* agreement that is located at http://www.povray.org/povlegal.html
*---------------------------------------------------------------------------
* This program is based on the popular DKB raytracer version 2.12.
* DKBTrace was originally written by David K. Buck.
* DKBTrace Ver 2.0-2.12 were written by David K. Buck & Aaron A. Collins.
*---------------------------------------------------------------------------
* $File: //depot/povray/3.6-release/source/poly.h $
* $Revision: #2 $
* $Change: 2939 $
* $DateTime: 2004/07/04 13:43:26 $
* $Author: root $
* $Log$
*****************************************************************************/
#ifndef POLY_H
#define POLY_H
BEGIN_POV_NAMESPACE
/*****************************************************************************
* Global preprocessor defines
******************************************************************************/
#define POLY_OBJECT (STURM_OK_OBJECT)
#define CUBIC_OBJECT (STURM_OK_OBJECT)
#define QUARTIC_OBJECT (STURM_OK_OBJECT)
/* Number of coefficients of a three variable polynomial of order x */
#define term_counts(x) (((x)+1)*((x)+2)*((x)+3)/6)
/*****************************************************************************
* Global typedefs
******************************************************************************/
typedef struct Poly_Struct POLY;
struct Poly_Struct
{
OBJECT_FIELDS
int Order;
DBL *Coeffs;
};
/*****************************************************************************
* Global variables
******************************************************************************/
extern METHODS Poly_Methods;
/*****************************************************************************
* Global functions
******************************************************************************/
POLY *Create_Poly (int Order);
void Compute_Poly_BBox (POLY *Poly);
END_POV_NAMESPACE
#endif
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